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Leo Peiffer, Christian Perfler and Martin Tajmar
Consumable-free electron emitters are presently not feasible for autonomous tether-based deorbit devices such as E.T.PACK due to their power requirement. The bare-photovoltaic-tether (BPT) concept combines the bare tether electron collection with a tethe...
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Zhao Yang, Pengfei Liu, Peishuai Chen, Shuchen Li and Fuquan Ji
The slurry?earth pressure balance dual-mode shield has an earth pressure balance (EPB) and slurry shield functions. Based on a shield tunnel project of Guangzhou Metro Line 12 in China, this study investigates the clogging prevention of a slurry?earth pr...
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Zhe Wang, Weihao Feng, Shuwei Wu, Pengfei Wu, Sifa Xu, Zewei Yao and Jiuchun Sun
Recently, many studies have been conducted on the stratum deformation induced by earth pressure balance (EPB) shield tunneling in soft soil and sand. Movement laws vary largely among different strata. However, at present, relevant research mainly focuses...
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Andrea Carigi, Carmine Todaro, Daniele Martinelli, Cristina Amoroso and Daniele Peila
The soil conditioning is a process of fundamental importance during the excavation of tunnels with Earth Pressure Balance full face machine. The soil conditioning is achieved through the addition of foam at the excavation face and in the bulk chamber tha...
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